William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 6598319 | Insole with rebounding and cushioning areas and adjustable arch support An insole of a sheet material of polymeric foam material having two openings therein corresponding to a portion of the heel and a portion of the arch. The openings are filled with a polymeric gel composition having a tacky bottom surface to assist holding... | 07/29/2003 |
| 6589630 | Performance enhancing shoe components and methods The present invention provides performance enhancing shoe components and methods of using those shoe components to increase exercise performance. The shoe components comprise a layer of 1,4-polybutadiene and, optionally, a high energy returning rubber. A ... | 07/08/2003 |
| 6574886 | Footwear and its method of construction Footwear and a method for its construction including the following features is provided. An upper which defines a volume for receiving a wearer's foot. A midsole which has an inner surface, an outer surface opposite to the inner surface, and an upstanding... | 06/10/2003 |
| 6568102 | Shoe having shock-absorber element in sole A shoe comprising a sole for supporting a foot of a wearer, and a shoe upper adjacent the sole. The sole includes an upper force-distribution plate portion, a lower force-distribution plate portion spaced below the upper plate portion, and at least one re... | 05/27/2003 |
| 6564476 | Flex sole The invention advantageously provides enhanced support of the foot wearing a shoe according to the invention, while eliminating unnecessary manufacturing steps. According to the invention, an upper, an insole, and an outsole are provided to manufacture a ... | 05/20/2003 |
| 6562427 | Airbag for shoes An airbag for shoes has a plurality of elastically compressible cylindrical cushion members which are interconnected in a predetermined array by a connecting plate. The cushion members/connecting plate combination is encapsulated in a casing. The cushion ... | 05/13/2003 |
| 6557272 | Helium movement magnetic mechanism adjustable socket sole An improved sole for use with all types of footwear, including dress, casual, and athletic shoes and sandals, which has a socket casing made of a plurality of layers, the topmost surface of which is in the form of an accommodating orthopedic type molded f... | 05/06/2003 |
| 6557270 | Sole design and structure for athletic shoe A shoe sole structure includes an outsole that extends from a heel region to a forefoot region of a shoe, and a midsole that is disposed above the outsole and extends from the heel region to a midfoot region of the shoe. A heel portion of the outsole incl... | 05/06/2003 |
| 6546648 | Athletic shoe with stabilized discrete resilient elements in heel An athletic shoe includes substantially horizontal chamber substantially within a heel portion of a midsole, the chamber having atmospheric communication at its lateral sides. The chamber includes an upper substantially rigid horizontal plate having at le... | 04/15/2003 |
| 6544626 | Natural grip A gripping and traction pattern for use on the outer gripping surfaces of footwear, handwear, tools, and the like that provides increased traction and a more natural feel. The pattern has a tread pattern of multiple projections extending from the base of ... | 04/08/2003 |
| 6536137 | Footwear support system A footwear support system of the type positioned within an inner volume of an article of footwear includes a footbed and an insole insert. The footbed includes a body having an upper surface and a cavity formed within the upper surface for receiving an in... | 03/25/2003 |
| 6523281 | Footwear for heel strikers Footwear for a human foot containing an elongated sole piece having a front, middle and rear section and having a ground engaging bottom surface and an upper surface in which the wearer's foot is received and, an upper piece secured to said sole piece, sa... | 02/25/2003 |
| 6521676 | Use of polyether-polyurethane for safety clothing Safety clothing is produced by molding polyether-based plastic-forming compositions. Particularly preferred articles of safety clothing produced by this process are safety shoe soles.... | 02/18/2003 |
| 6521305 | Cushioning device with improved flexible barrier membrane Products in the form of cushioning devices made from flexible membranes employing at least one layer including thermoplastic urethane and at least one layer of a copolymer of ethylene and vinyl alcohol are inflatable to a relatively high pressure. The cus... | 02/18/2003 |
| 6516539 | Shock absorbing device for shoe sole This invention is directed to a shock absorbing device for a shoe sole providing a lower layer 2 having an upper face 21 and an upper layer 3 having a lower face 30. The two layers 2, 3 are both made of an elastomer. The faces 21, 30 are each formed to ha... | 02/11/2003 |
| 6510624 | Inflatable lining for footwear with protective and comfortable coatings or surrounds The invention is an inflatable inner sole for footwear which has a flexible, inflatable enclosure with an inflation system that preferably includes an on-board air pump and a pressure relief valve. In this invention the inner sole has a sheet and/or foam ... | 01/28/2003 |
| 6508017 | Cushioning device for footwear A cushioning device for footwear that provides flexibility in the forepart area. The device having an insole with perforations in the forepart region and a first pad underlying the region. The device having a cutout in the heel region with an insert provi... | 01/21/2003 |
| 6505420 | Cushioning member for an article of footwear A cushioning member for an article of footwear is provided having a series of interconnected chambers filled with ambient or slightly pressurized air. An impedance is provided between selected chambers, in order to restrict the flow of air between the cha... | 01/14/2003 |
| 6497057 | Heel cushion A shoe cushion system integrated in a heel portion of a shoe includes a cavity in the heel of the sole for housing a honeycomb cushion and a strike pad to reduce foot fatigue. A spring is located directly above the strike pad and directs force from the im... | 12/24/2002 |
| 6487796 | Footwear with lateral stabilizing sole The invention is an article of footwear having a sole comprised of one or more support elements formed of a resilient, compressible material. The support elements are designed such that impact forces generated by movements of a wearer deflect the support ... | 12/03/2002 |
| 6487795 | Shoe sole structures A shoe having improved stability and cushioning by incorporating aspects similar to certain structures of the human foot. The shoe includes a shoe sole having a contour similar to that of the human foot, including a sole inner surface and a sole outer sur... | 12/03/2002 |
| 6477789 | Ventilated shoe insole having minimal height front region A shoe insole has a plurality of superimposed, thin, apertured, mesh and/or fabric layers at its front end region, and a heel-operated pump for pumping air through openings in the apertured layers. The layers occupy a minimal height and easily fit within ... | 11/12/2002 |
| 6477792 | Method of manufacturing a composite vapor-permeable insole and insole thus obtained A method of manufacturing a vapor-permeable composite insole, comprising the steps of gluing at least one pad of vapor-permeable textile material to a respective work area of a first layer of flexible material, and applying a second layer of relatively so... | 11/12/2002 |
| 6467197 | Shoe with arch reinforcement Disclosed is a shoe sole comprising an outer sole 1F, 1B, a midsole 2 and a reinforcement device 4 made of a resin plate. The reinforcement device 4 is firmly secured to the underside of an arch portion 2M of the midsole 2. At a medial side 11 and a later... | 10/22/2002 |
| 6463680 | Shoe device A shoe device for offsetting the affects of nerve injuries. The shoe device includes a sole having an upper surface, a lower surface, a front end and a back end. A peripheral edge extends between the upper and lower surfaces. The sole has a toe portion, b... | 10/15/2002 |
| 6457261 | Shock absorbing midsole for an athletic shoe A midsole comprises a heel cup having a semi-rigid upper plate, a lower plate composed of a material that is softer than the upper plate, and at least one telescopic shock absorber between the upper and lower plates. The telescopic shock absorbers have on... | 10/01/2002 |
| 6446359 | Ventilated shoe sale structure Sole structure able to associated to an upper of a shoe, having first ducts in the area of the plantar arch and of the tip and one or more lateral openings in the heel area. In the heel area is obtained a seat for a counter-shaped insert provided with at ... | 09/10/2002 |
| 6438870 | Shoe sole with shock absorber structure A shock absorbing section (10) of a shoe sole (1) is provided with a shearing transformation element (11). This shearing transformation element (11, 11A) is supported at an upper position dislocated forward (F) with respect to a grounding surface (20) so ... | 08/27/2002 |
| 6430843 | Dynamically-controlled cushioning system for an article of footwear An article of footwear with a dynamically-controlled cushoning system is disclosed. The cushioning system includes a sealed, fluid-filled bladder formed with a plurality of separate cushioning chambers, and a control system. The control system, which incl... | 08/13/2002 |
| 6425194 | Variable cushioning structure A cushioning sole for use in contact with a foot, the foot being characterized by a specific shape relief and pressure map. The cushioning structure comprises a central layer of a rubber-like thermoplastic material having an upper surface devised to be in... | 07/30/2002 |
| 6418641 | Sport shoe with structural frame A sport shoe includes an upper affixed to a structural frame system composed of a shock absorbing insole adhesively attached to the upper, a frame with front and rear cutouts adhesively secured to the insole to provide stability and impulsion to the shoe,... | 07/16/2002 |
| 6408543 | Footbed system with variable sized heel cups A footbed system is disclosed which includes at least one sole pad and at least two heel cups. Each heel cup including a base and a side wall extending from the base on the medial and lateral sides thereof. The volume of the side walls of each heel cup is... | 06/25/2002 |
| 6408544 | Flex sole A shoe designed for active wear is described having a distinctive outsole. The outsole has a peripheral wall delimiting a plantar region, a heel region and an arch region of the outsole. A cavity formed in the plantar region has a shape including a floor ... | 06/25/2002 |
| 6405456 | Shock reducing innersole An innersole device for reducing shock to the feet of the user of shoes as would occur with one who is running in his shoes. A shoe sole and innersole is disclosed having several types of shock reduction methods including: (1) opposing magnets with compre... | 06/18/2002 |
| 6405455 | Shock-absorbing running shoe A shock-absorbing running shoe has a sole attached to an upper, with a carriage in the upper adapted to receive the rear portion of a runner's foot. The sole has a collapsible area below the carriage. A first strut is attached to the medial side of the so... | 06/18/2002 |
| 6402879 | Method of making bladder with inverted edge seam A bladder which is particularly useful for a sole assembly of a shoe is formed of multiple layers of barrier film to provide multiple pressurized layers of cushioning fluid or gas when the bladder is filled. A multiple gas layer bladder enhances cushionin... | 06/11/2002 |
| 6401365 | Athletic shoe midsole design and construction A midsole assembly for an athletic shoe comprising a midsole and a corrugated sheet. The midsole is formed of soft elastic material. The corrugated sheet is disposed in at least a heel portion of the midsole. Either or both amplitude and wavelength of wav... | 06/11/2002 |
| 6389713 | Athletic shoe midsole design and construction A midsole assembly for an athletic shoe includes a midsole formed of soft elastic material and a corrugated sheet disposed in a heel portion to a forefoot portion of the midsole. The upper midsole has a different hardness than the lower midsole. When the ... | 05/21/2002 |
| 6381875 | Cushioning system for golf shoes A cushioning system for golf shoe includes a footbed and a lasting board, each having a sole region, an arch region, and a heel region. The footbed includes an upper layer which is engaged by the foot of a golfer and a cushion layer composed of compressib... | 05/07/2002 |
| 6367172 | Flex sole A shoe designed for active wear is described having a distinctive outsole. The outsole has a peripheral wall delimiting a plantar region, a heel region and an arch region of the outsole. A cavity formed in the plantar region has a shape including a floor ... | 04/09/2002 |